path: root/sound/pci/asihpi/hpicmn.h

/**

    AudioScience HPI driver
    Copyright (C) 1997-2010  AudioScience Inc. <support@audioscience.com>

    This program is free software; you can redistribute it and/or modify
    it under the terms of version 2 of the GNU General Public License as
    published by the Free Software Foundation;

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

struct hpi_adapter_obj {
	struct hpi_pci pci;	/* PCI info - bus#,dev#,address etc */
	u16 adapter_type;	/* ASI6701 etc */
	u16 index;		/* */
	u16 open;		/* =1 when adapter open */
	u16 mixer_open;

	struct hpios_spinlock dsp_lock;

	u16 dsp_crashed;
	u16 has_control_cache;
	void *priv;
};

struct hpi_control_cache {
	u32 init;	     /**< indicates whether the
				structures are initialized */
	u32 control_count;
	u32 cache_size_in_bytes;
	struct hpi_control_cache_info
	**p_info;		 /**< pointer to allocated memory of
				lookup pointers. */
	struct hpi_control_cache_single
	*p_cache;		 /**< pointer to DSP's control cache. */
};

struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
u16 hpi_add_adapter(struct hpi_adapter_obj *pao);

void hpi_delete_adapter(struct hpi_adapter_obj *pao);

short hpi_check_control_cache(struct hpi_control_cache *pC,
	struct hpi_message *phm, struct hpi_response *phr);
struct hpi_control_cache *hpi_alloc_control_cache(const u32
	number_of_controls, const u32 size_in_bytes,
	struct hpi_control_cache_info
	*pDSP_control_buffer);
void hpi_free_control_cache(struct hpi_control_cache *p_cache);

void hpi_sync_control_cache(struct hpi_control_cache *pC,
	struct hpi_message *phm, struct hpi_response *phr);
u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
short hpi_check_buffer_mapping(struct hpi_control_cache *p_cache,
	struct hpi_message *phm, void **p, unsigned int *pN);